/* DenTask marketing site — self-contained, no external assets. */
:root{
  --teal:#12B0A6; --teal-deep:#0C7C79; --ink:#0F2430; --ink-mute:#4A6272;
  --bg:#F6FAFB; --card:#FFFFFF; --line:#E3EDF1; --amber:#F59E0B;
  --grad:linear-gradient(135deg,#12B0A6,#0891B2);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;color:var(--ink);background:var(--bg);line-height:1.6}
.wrap{max-width:1120px;margin:0 auto;padding:0 20px}
h1{font-size:clamp(2rem,5vw,3.3rem);line-height:1.12;letter-spacing:-.02em}
h1 em{font-style:normal;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
h2{font-size:clamp(1.5rem,3.4vw,2.2rem);letter-spacing:-.01em;margin-bottom:8px}
.sub{color:var(--ink-mute);max-width:640px;margin-bottom:28px}
.micro{font-size:.8rem;color:var(--ink-mute)}
.center{text-align:center;padding:14px 0}

.btn{display:inline-block;background:var(--grad);color:#fff;font-weight:700;padding:13px 26px;border-radius:12px;text-decoration:none;border:none;cursor:pointer;font-size:1rem;box-shadow:0 6px 18px rgba(18,176,166,.30);transition:transform .15s}
.btn:hover{transform:translateY(-2px)}
.btn-ghost{background:#fff;color:var(--teal-deep);border:1.5px solid var(--teal);box-shadow:none}
.btn-sm{padding:9px 18px;font-size:.9rem}

/* Nav */
.nav{position:sticky;top:0;z-index:50;background:rgba(246,250,251,.88);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav-in{display:flex;align-items:center;justify-content:space-between;height:62px}
.brand{font-size:1.25rem;font-weight:800;color:var(--ink);text-decoration:none}
.brand span:last-child{color:var(--teal-deep)}
.brand-mark{margin-right:2px}
.nav-links{display:flex;gap:22px;align-items:center}
.nav-links a{color:var(--ink-mute);text-decoration:none;font-weight:600;font-size:.95rem}
.nav-links a:hover{color:var(--teal-deep)}
.nav-burger{display:none;font-size:1.4rem;background:none;border:none;cursor:pointer;color:var(--ink)}

/* Hero */
.hero{padding:72px 0 40px}
.hero-in{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center}
.eyebrow{font-weight:800;font-size:.8rem;letter-spacing:.12em;text-transform:uppercase;color:var(--teal-deep);margin-bottom:12px}
.lead{color:var(--ink-mute);font-size:1.12rem;margin:18px 0 26px;max-width:34em}
.cta-row{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:14px}
.hero-art img,.tpl-art img{width:100%;border-radius:18px;border:1px solid var(--line);box-shadow:0 24px 60px rgba(15,36,48,.14)}
.art-fallback{display:none}
figure.noimg img{display:none}
figure.noimg .art-fallback{display:flex;align-items:center;justify-content:center;aspect-ratio:4/3;border-radius:18px;background:var(--grad);font-size:4rem;box-shadow:0 24px 60px rgba(15,36,48,.18)}

/* Stats strip */
.strip{background:var(--ink);color:#fff;padding:22px 0}
.strip-in{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;text-align:center}
.strip b{display:block;font-size:1.5rem;color:#5EEAD4}
.strip span{font-size:.85rem;color:#B8CDD6}

/* Features */
.features{padding:76px 0}
.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:30px}
.card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:20px;box-shadow:0 4px 16px rgba(15,36,48,.05);transition:transform .18s,box-shadow .18s;display:flex;flex-direction:column}
.card:hover{transform:translateY(-4px);box-shadow:0 14px 34px rgba(15,36,48,.10)}
.card-art{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:10px;margin-bottom:14px;border:1px solid var(--line)}
.card-art.hide{display:none}
.card-ico{font-size:1.6rem;margin-bottom:8px}
.card h3{font-size:1.02rem;margin-bottom:6px}
.card p{font-size:.9rem;color:var(--ink-mute)}

/* Templates */
.templates{background:#fff;border-block:1px solid var(--line);padding:72px 0}
.tpl-in{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center}
.ticks{list-style:none;margin-top:16px}
.ticks li{padding-left:28px;position:relative;margin-bottom:10px;color:var(--ink-mute)}
.ticks li::before{content:"✓";position:absolute;left:0;top:0;color:var(--teal-deep);font-weight:800}

/* How */
.how{padding:76px 0}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:26px}
.step{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:24px}
.step b{display:inline-flex;width:34px;height:34px;align-items:center;justify-content:center;background:var(--grad);color:#fff;border-radius:50%;margin-bottom:12px}
.step p{font-size:.92rem;color:var(--ink-mute)}

/* Pricing */
.pricing{background:#fff;border-top:1px solid var(--line);padding:76px 0}
.plans{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:8px}
.plan{border:1px solid var(--line);border-radius:18px;padding:24px;display:flex;flex-direction:column;background:var(--card)}
.plan-hot{border:2px solid var(--teal);box-shadow:0 16px 40px rgba(18,176,166,.16);position:relative}
.tag{position:absolute;top:-12px;left:50%;transform:translateX(-50%);background:var(--amber);color:#fff;font-size:.72rem;font-weight:800;padding:3px 12px;border-radius:999px;white-space:nowrap}
.price{font-size:1.7rem;font-weight:800;margin:8px 0 14px}
.price span{font-size:.85rem;font-weight:600;color:var(--ink-mute)}
.plan ul{list-style:none;margin-bottom:20px;flex:1}
.plan li{font-size:.88rem;color:var(--ink-mute);padding:5px 0 5px 22px;position:relative}
.plan li::before{content:"•";position:absolute;left:6px;color:var(--teal)}
.plan .btn,.plan .btn-ghost{text-align:center}

/* Demo */
.demo{padding:80px 0;background:var(--ink);color:#fff}
.demo-in{text-align:center;max-width:620px;margin:0 auto}
.demo p{color:#B8CDD6;margin:10px 0 24px}
.demo-form{display:flex;gap:10px;flex-wrap:wrap;justify-content:center}
.demo-form input{flex:1 1 200px;padding:13px 16px;border-radius:12px;border:1px solid #33505E;background:#132C3A;color:#fff;font-size:1rem}
.demo-form input::placeholder{color:#7E99A6}
#demoMsg{margin-top:12px;color:#5EEAD4}

/* Footer */
.foot{padding:40px 0 8px;border-top:1px solid var(--line)}
.foot-in{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap;padding-bottom:18px}
.foot-links{display:flex;gap:18px;align-items:center}
.foot-links a{color:var(--ink-mute);text-decoration:none;font-size:.9rem}

/* Responsive */
@media (max-width:900px){
  .hero-in,.tpl-in{grid-template-columns:1fr}
  .grid{grid-template-columns:repeat(2,1fr)}
  .plans{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:1fr}
  .strip-in{grid-template-columns:repeat(2,1fr);row-gap:18px}
}
@media (max-width:620px){
  .grid,.plans{grid-template-columns:1fr}
  .nav-links{display:none;position:absolute;top:62px;left:0;right:0;background:#fff;flex-direction:column;padding:18px;border-bottom:1px solid var(--line)}
  .nav-links.open{display:flex}
  .nav-burger{display:block}
}